CN213360753U - Snap spring - Google Patents

Abstract

The embodiment of the utility model provides a jump ring the embodiment of the utility model provides an in, set up the operation portion through the outside at the arm of main part to set up the handle hole in the operation portion, thereby, can make the dismantlement piece operate the jump ring through the handle hole, improved the maneuverability of jump ring, can avoid the installation or dismantle in-process jump ring and damage, reduce the part loss. Meanwhile, the installation efficiency can be improved, and the production cost can be reduced.

Description

Snap spring

Technical Field

The utility model relates to the field of machinary, especially, relate to a jump ring.

Background

The circlip is also called retainer ring or retainer ring, belongs to a kind of fastener, and is used for being installed in the shaft groove or hole groove of machine and equipment, and plays the role of preventing the axial movement of the parts on the shaft or hole. However, when the clip is small in size, it is inconvenient to operate in the mounting and dismounting processes, and may cause deformation and damage of the clip, thereby reducing the mounting efficiency.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a jump ring improves the efficiency that the jump ring was installed or was dismantled through setting up the handle hole at the tip of jump ring.

The embodiment of the utility model provides a jump ring includes:

the watch comprises a main body part, a plurality of elastic pieces and a plurality of elastic pieces, wherein the main body part is used for being clamped with a shaft of a key of the watch and comprises a bottom part and two arm parts extending from the bottom part to two sides, and the arm parts and the bottom part surround to form a recessed area with an opening;

and the two operating parts are respectively and fixedly connected with the arm parts, and the operating parts are provided with operating holes for the detachable pieces to pass through.

Preferably, the operating portion is an ear-shaped structure and is disposed on the outer periphery of the main body portion.

Preferably, the main body has an outer circumference in the form of a circular arc, and the two operation portions extend outward from both ends of the circular arc.

Preferably, the operation hole is a through hole perpendicular to an upper surface of the operation portion.

Preferably, the operation hole is a square hole or a round hole.

Preferably, the operation hole is a circular hole, and the outer periphery of the operation portion is an arc concentric with the circular hole.

Preferably, the clamp spring is an axisymmetric pattern; the two operation portions are symmetrical with respect to the symmetry axis.

Preferably, the bottom has a projection extending in the direction of the opening.

Preferably, the protrusion is provided with a clamping surface.

The embodiment of the utility model provides a jump ring sets up the operation portion through the outside at the arm of main part to set up the handle hole in the operation portion, thereby, can make the dismantlement piece operate the jump ring through the handle hole, dismantle the jump ring, improved the maneuverability of jump ring, can avoid the installation or dismantle in-process jump ring and damage, reduce the part loss. Meanwhile, the installation efficiency can be improved, and the production cost can be reduced.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

fig. 1 is a front view of a circlip of a comparative example;

FIG. 2 is a schematic diagram of an application scenario of a clamp spring of a comparative example;

fig. 3 is a front view of a clamp spring according to an alternative implementation manner of the embodiment of the present invention;

fig. 4 is a front view of a clamp spring according to another alternative implementation manner of the embodiment of the present invention;

fig. 5 is a front view of a clamp spring according to another alternative implementation manner of the embodiment of the present invention.

Description of reference numerals:

a, pressing a key; b, a shell; 1, clamping spring; 2, opening; 1a, a clamp spring; 100 a main body portion; 10, opening; 101, a bottom part; 102 an arm part; 20 an operation part; 201 an operation hole; 30 a recessed area; 40, a bulge; 41 a clamping surface; XX' axis of symmetry

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of embodiments of the invention, certain specific details are set forth. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the embodiments of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the embodiments of the present invention, "a plurality" means two or more unless otherwise specified.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

When an element or layer is referred to as being "on," "engaged to," "connected to" or "coupled to" another element or layer, it may be directly on, engaged, connected or coupled to the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly engaged to," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a similar manner. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Spatially relative terms, such as "inner," "outer," "below," "lower," "above," "upper," and the like, are used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device may be otherwise oriented and the spatially relative descriptors used herein interpreted accordingly.

Fig. 1 is a front view of a circlip of a comparative example. Fig. 2 is a schematic diagram of an application scenario of the snap spring of the comparative example. As shown in fig. 1, the clip 1 of the comparative example is an E-type clip. As shown in fig. 2, the circlip of the comparative example is applied to a wristwatch, and fig. 2 is a sectional view of a partial region of the wristwatch. A shell B of the watch is of an annular structure, a through hole for a shaft of a key to pass through is formed in the side wall of the shell B, and a clamp spring 1 is installed at the end of the shaft of the key after the key passes through the through hole. The outer diameter of the clamp spring 1 is larger than the inner diameter of the hole of the shell B, and the clamp spring is fixedly connected with the shaft of the key, so that the displacement of the key along the axial direction is limited, and the key is relatively fixed with the shell in an axially movable mode.

The inner diameter of the clamp spring 1 is slightly smaller than the diameter of the shaft of the key, the size of the opening 2 of the clamp spring 1 is smaller than the inner diameter of the clamp spring 1, and the shaft of the key A is inwards pushed into the central hole of the clamp spring 1 from the opening of the clamp spring 1 in the mode that the clamp spring 1 is installed on the shaft of the key A. Therefore, the clamp spring 1 is elastically deformed and is opened towards two sides to form a clamping force for inwards clamping the shaft of the key A.

However, the watch is small in size, the clamp spring is small in size and thin, the clamp spring is easy to deform and damage in the mounting and dismounting processes, the mounting and dismounting efficiency is low, the clamp spring is scrapped, and the product cost is improved.

In view of this, the embodiment of the utility model provides a jump ring can improve the efficiency of installation and dismantlement.

The circlip of the embodiment of the present invention is described below by taking the case of being mounted on a button of a watch. Therefore, the schematic diagram of the related application scenario can refer to fig. 2 in the comparative example, and is not repeated here. It should be understood that, although the present invention is exemplified by using the snap spring in the watch, in fact, the snap spring in the embodiments of the present invention can be used in other mechanical structures.

Fig. 3-5 are front views of clamp springs according to embodiments of the present invention. As shown in fig. 3, the clamp spring 1a includes a main body 100 and an operating portion 20, the main body 100 includes a bottom 101 and two arm portions 102 extending from the bottom 101 to two sides, and the arm portions 102 and the bottom 101 surround a recessed area 30 having an opening 10. The two arm portions 102 are symmetrical to each other in arc shape, and the inner wall of the main body portion 100 is provided with a protrusion 40. Said recessed areas 30 are intended to hold the keys of a watch.

As a preferred embodiment, the circlip 1a may be a ring shape having an opening 10, an outer diameter of the ring shape is R1, and an inner diameter of the ring shape is R2. The annular inner wall is provided with three protrusions 40, wherein one protrusion 40 extends from the bottom 101 towards the opening 10, and the other two protrusions 40 are formed protruding inwards from the arm 102. The protuberance 40 comprises a holding surface 41 for holding the push-button of the watch, the three holding surfaces 41 enclosing a circular space with a radius R3 for holding the axis of the push-button of the watch. Where R3 is smaller than the radius of the axis of the key. The size of the opening 10 is smaller than the diameter of the circular space. Through the arrangement of the bulge 40, the size of the annular arm part 102 in the radial direction is smaller, the range of elastic deformation of the clamp spring 1a in the radial direction is enlarged, and further the elastic force of the clamp spring 1a is increased, so that the clamp spring is tightly clamped on the shaft of the watch key.

In this embodiment, the shaft of the key is placed in the circular space surrounded by the holding surface 41 by expanding the arm 102 of the circlip 1a from the opening 10 inward to both sides and elastically deforming the shaft. The latch spring 1a is elastically deformed to both sides to form an inward holding force to restore the initial state, and further holds the shaft of the key by the holding surface 41.

In the embodiment of the present invention, the main body 100 may be an E-shaped clamp spring 1 a.

The two operation parts 20 are fixedly connected to the arm parts 102, respectively, and the operation parts 20 have operation holes 201. The operation portion 20 is provided on the outer periphery of the main body portion 100. The two operation portions 20 are located at the ends of the arm portion 102. The clamp spring 1a is in an axisymmetrical pattern. The two operating portions 20 are symmetrical with respect to the axis of symmetry X-X'. The operation holes 201 of the two operation portions 20 are also arranged symmetrically with respect to the axis of symmetry X-X'.

In the present embodiment, the operating portion 20 may be an ear structure that protrudes radially outward at the end of the arm portion 102. The two operating portions 20 are symmetrically disposed with respect to the axis of symmetry X-X'. The symmetrical structure can make jump ring 1a atress even, avoids leading to jump ring 1a to warp because both ends atress is uneven.

The operation hole 201 is a through hole perpendicular to the upper surface of the operation portion 20. The clamp spring can further comprise a dismounting part, and the operation hole 201 can be penetrated by the dismounting part. The dismounting part can be a dismounting tool such as a clamp spring 1a clamp or a sharp nipper.

In an alternative implementation, as shown in fig. 3, the operation hole 201 is a circular hole. The outer arc surface of the operating portion 20 is an arc concentric with the circular hole. The circular hole is concentric with the outer circumferential surface of the operation part 20, so that the size of the operation part 20 around the circular hole along the radial direction of the circular hole is consistent, the operation part 20 can be stressed uniformly, and the operation part 20 is prevented from being damaged due to uneven stress.

In another alternative implementation, as shown in fig. 4, the operation hole 201 is a rectangular square hole. If the shape of the dismounting member is square, the operation hole 201 is a square hole, so that the dismounting member can pass through the operation hole 201, and the dismounting of the clamp spring 1a is realized through the matching of the dismounting member and the operation hole. In the present implementation, the outward projection 40 of the operating portion 20 is also reduced in size to reduce the size of the circlip 1 a.

In the embodiment of the present invention, the operation portion 20 and the main body portion 100 are both in a sheet shape. The operating portion 20 and the main body portion 100 have the same thickness. Alternatively, the operation portion 20 and the main body portion 100 may be integrally formed, and may be specifically obtained by punching with a predetermined die.

The clamp spring 1a can be made of sheet materials through stamping, and the materials can be spring steel. The spring steel has better toughness and is not easy to generate inelastic deformation. In an embodiment of the invention, the thickness of the sheet material may be 0.05mm-1 mm.

In the embodiment of the present invention, the operation portion is provided outside the arm portion of the main body. And set up the operation hole on the operation portion to, can make the dismantlement piece operate the jump ring through the operation hole, improved the maneuverability of jump ring. The clamp spring can be prevented from being damaged in the process of installation or disassembly, and the loss of parts is reduced. Meanwhile, the installation efficiency can be improved, and the production cost can be reduced.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (9)

1. A circlip, characterized in that the circlip (1a) comprises:

a main body part (100) which is used for being engaged with the shaft of a button (A) of the watch and comprises a bottom part (101) and two arm parts (102) extending from the bottom part (101) to two sides, wherein the arm parts (102) and the bottom part (101) surround to form a depressed area (30) with an opening (10);

two operation parts (20) are respectively and fixedly connected with the arm parts (102), and the operation parts (20) are provided with operation holes (201) for the penetration of the dismounting parts.

2. The circlip of claim 1, wherein said operating portion (20) is an ear-like structure provided on the outer periphery of said body portion (100).

3. The circlip of claim 2, wherein the outer circumference of the main body portion (100) is a circular arc, and the two operating portions (20) extend outward from both ends of the circular arc, respectively.

4. Circlip according to claim 3, characterized in that the operating hole (201) is a through hole perpendicular to the upper surface of the operating part (20).

5. The circlip of claim 4, characterized in that the operating hole (201) is a square hole or a round hole.

6. The circlip of claim 4, wherein the operating hole (201) is a circular hole, and the outer circumference of the operating part (20) is an arc concentric with the circular hole.

7. Circlip according to claim 5 or 6, characterized in that the circlip (1a) is an axisymmetric pattern; the two operating parts (20) are symmetrical with respect to a symmetry axis.

8. Circlip according to claim 7, characterized in that the bottom (101) has a projection (40) extending in the direction of the opening (10).

9. Circlip according to claim 8, characterized in that the protrusion (40) is provided with a clamping surface (41).

Images